The Definition of Double-Set Trigger
Usually only found on black powder muzzle loading rifles and pistols,
pulling the rear (set) trigger converts the front (main) trigger to a light, hair trigger
(too light and sensitive to be carried safely in the field). While the front trigger is always at the ready,
if one has the time, using the set trigger feature may allow for a more accurate long-distance shot.
Operates using its own miniature firing mechanism (sear, spring and hammer) when cocked,
to multiply the force of a pull on the main trigger.
19 Other Firearms Definitions You Need To Know
A mark within a border, typically
stamped into the wood, especially of an American military rifle. It shows the
initials of the name of the accepting inspector and often, the date he accepted
the firearm into service.
A spring-activated mechanism for the ejection of ammunition or and empty shell casing. On doubles, each barrel has a separate ejector.
Two shots fired very quickly with the use of the sights.
Also known as peep sights, range from the ghost ring sight, whose thin ring blurs to near invisibility (hence ghost), to target aperture sights that use large disks or other occluders with pinhole-sized apertures. In general, the thicker the ring, the more precise the sight, and the thinner the ring, the faster the sight.
A device used to determine the range to a target. Many range finders work by bouncing a laser beam off the target or
nearby object and measuring the time for the reflection to arrive back at the instrument.
It is also possible to use various passive optical devices such as a mil-dot telescopic sight.
The small lever on a cartridge firearm, which one pulls to cause the spring-loaded firing pin to impact the primer, causing the gun to discharge.
Normally, the trigger simply connects to the sear. Pulling the trigger moves the sear out of its notch, releasing the spring-loaded hammer
to strike the firing pin which in turn strikes the primer; or the coilspring-loaded firing pin directly. Other, often-Germanic systems have their own
miniature lockwork which, when cocked, allows an exceedingly light trigger pull to discharge the firearm, a setting that would be perilous to carry in the field.
The first shot from a rifle that has been cleaned, and not fired recently may go to a different point of impact, for the same point of aim than a rifle that has been fired recently.
This first shot is referred to as a shot from a cold, clean, bore.
Not really a gun at all. During the U.S. Civil War,
both sides would take tree branches or tree trunks, paint them black, and position them so that they appeared to be rifles or artillery pieces.
By doing so, they could fool the other side into believing that they had more artillery than they really did.
The tendency of a bullet to tip in flight and hit a target sideways, leaving a distinctly oblong hole.
This destabilization of the spinning bullet in flight is typically caused by a bullet weight inappropriate
for the rate of twist of the rifled barrel, an out-of-balance bullet or its having nicked an impediment such as a blade of grass, in flight.
A regular pattern of fine grooves cut into
the surface of a stock to aid in gripping a gun. Originally done for utility only,
checkering has become an art form in itself; craftsmen adorning the borders with ribbons,
fleur-de-lys, floral carving, etc. The amount of coverage, the precise regularity, and the
number of lines per inch indicate the quality of the work. Too-fine checkering, however,
defeats the purpose of the work altogether.
A process of filling gaps between the action and the stock of a rifle with an epoxy based material.
An external, manual safety which is typically disengaged with the firing-hand thumb.
A box of ammunition roughly equal in size and weight to a brick. Most often used to describe a 500-round container of .22 Long Rifle ammunition.
The term used for the casing on modern rifle and pistol ammunition. It is usually made out of brass but can also be aluminum or steel.
The casing on a shotgun shell is usually refered to as a hull
The part in the breech mechanism that locks the action against the firing of the cartridge.
A craftsman's signature stamp, discretely placed to identify his work.
The action of moving live cartridges from the magazine of a firearm into the chamber.